Window-sash lock.



W. M. REICHAHD.

WINDOW SASH LOCK. APPLICATION FILED DEC.28. 1914.

1,1 55,6 1 7. Patented Oct. 5, 1915.

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Application filed. December 28 To all whom it may concern: I 7

Be it known that I, WILBUR M. Rnioniinn,

'a citizen of the United States, and residing at New York, in the countyof New York ,and State of New York, have invented certain new and usefulImprovements in lVindow-Sash Locks, of which the following is aspecification, such as will enable those skilled in the art to which itappertains to 'make and use the same.

This invention relates to window sash locks, and the object thereof isto provide "looked together and locked to the window frame when saidsashes are partially open for the purpose of ventilation; and with thisand other objects in view the invention consists in a window sash lock,constructed and operating as hereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanyingdrawing forms a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is an inside view of one sideportion of a window frame, and showing parts of the upper and lowersashes and my improved sash lock in operation, part of the constructionbeing in section; Fig. 2 a section on the line 22 of Fig. 1; Fig. 3 asectional plan view of the construction as shown in Fig. 1; and, Fig. 4a view similar to Fig. 3 but showing the sash lock out of operation.

In the drawing forming part of this specification, I have shown at a apart of one side of a window frame, the left side being selected, and atb I have shown the lower left corner of the top window sash, and at cthe upper left corner of the bottom window sash. The top sash comprisesthe usual vertical side member 6 and bottom member 6 and the bottom sashcomprises the usual vertical side member 0 and top member 0 In theconstruction shown, I have also provided the top sash member 6 with avertical plate d which is countersunktherein and provided with boltholes (Z and the side of the win dow frame is provided in front of thesash member with a similar vertical plate 0 which Specification ofLetters Patent.

Patented Get. 5, W315.

, 114. Serial No; 879,241.

is Lshaped in cross section and comprises a horizontal top member fadapted to rest snugly on the top member or rail 0 of the bottom sash,and a vertical member f which abuts against the front side of said sashor rail member 0 and the L-shaped plate f is secured to said rail orsashmember by screws 9' passed through theparts f? and f thereof.

The front plate member f is provided -in the top portion thereof with adeep longitudinal groove f in which is mounted a longitudinally movablebolt h which passes through a keeper 72. mounted on, or connected withthe plate member 7' and the end of which is adapted to operate in theholes 6 in the plate 6 secured in the window frame, and mountedtransversely of, and movable transversely of the outer end portion ofthe plate member 7' is a bolt 7; whichis held in place by a keeper iconsistingof a plate secured to parallel block members a securedtransversely of the plate member 7, and the outer end of the bolt cl isadapted to operate in the bolt holes d in the plate d.

-The front end of the bolt 71 is provided with a triangular head ihaving a diagonal slot 2' arranged at an angle of approximatelyforty-five degrees to said bolt 2', and the bolt in is provided with astud pin k formed on or secured thereto, and which operates in the slot2'.

A turn pin j is secured in the plate member f inwardly of the inner endof the bolt it, and this pin is provided with a hub 7' of the samethickness as the bolt h, and the inner end of the pin j is provided witha head j and mounted on said pin between the head thereof and the hub isa plate 70 provided with a cam slot 72 and the inner end of the bolt his provided with a pin 70 which passes outwardly through and operates insaid cam slot.

A lock pawl m is pivoted on the plate member f back of the inner end ofthe bolt 7b as shown at m and said pawl is provided with a nose-piece madapted to engage the inner end of said bolt, and pivoted to the platemember 7 is a cam lever 12 having a cam head 12 adapted to operate inconnection with the pawl m and said cam scription it will be seen thatthe turning of the pin 3 by means of the head j thereof will throw thebolts 71, and 2' into the operative position as shown in Figs. 1 2 and3,

or out of the operative position as shown in Fig. 4, according to thedirection in which said pin is turned, and the pawl m and cam lever amay be manipulated to lock the bolt h in its operative position, andthis will also lock the bolt 2' in its operative position, and whenit.is desired to throw said bolts into their inoperative position thecam lever n must be manipulated so that the pawl m 1 may be turned outof engagement with the inner end of the bolt it.

With this construction the .top and bottom sashes may be locked in theclosed position, or both sashes may be opened to any desired extent andlocked together and also locked to the window frame whenever desired forventilation or other purposes.

My invention is not limited to the use of the pawl m and cam lever n forlocking the bolts in'their operative position and any suitable means foraccomplishing this result may be employed, and other changes in andmodifications of the construction herein described, may be made, withinthe scope of the appended claims, without departing from the spirit ofmy invention or sacrificing its advantages.

Having fully described my invention, I

what I claim as new and desire to secure by Letters Patent, is

A window sash lock, comprising an attaching plate which is L-shaped incross secother of which is placed on that part of said plate which abutsagainst the front face of thetop rail and is movable laterally andadapted to engage the adjacent-side of the window frame, the bolt whichis mov able forwardly and back'wardly beingprovided with a head having adiagonal slot and the bolt which is movable laterally with a pin'whichoperates in said slot, means for operating said laterally V movable boltin both directions by hand, consistin of a cam disk pivoted to the saidplate an having a curved slot through which is passed a pin" connectedwith said bolt, said cam disk being provided with a handle, and meansfor locking said bolt in operative position. 7 V

In testimonythat'I claim the foregoing as my invention I have signed myname in presence of the subscribing witnesses this 24th day of December,1914i.

VVILBUR M. REIOHARD. WVitnesses': V

O. MULREANY, H. I. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressingthe 1 Commissioner of Patents, Washington, D. G. I

